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STAUY-B. MSELTINE, 01E CHICAGO, ILLINOIS, ASSIGNOR T0 WILLIAM'H'. ltllllm'm; Old.

CHAZY, NEW YORK.

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Specification of'Lettera Patent.

Patented Dec. a, rare.

' npplicatlonflledn'pril13,1916. Serial no. oases.

in keyless yokes.

The object of the invention is to provide a yoke and draw-bar connection which avoids the necessity of coupler keys and which is so arranged that the draw-bar may be disconnected from theyoke without disturbing the gear.

Another object of the invention is to provide a draw-bar and yoke connection so arranged that all the parts are easily accessible from the front end of the yoke.

In the drawing forming a part of this specification, Figure 1 is a side elevation of a draw-bar and yoke showing my improvements in connection therewlth. Fig. 2 is a" horizontal. sectional view taken substan- Fig. 3 is a bottom. plan view of the forward end of the yoke. 15 i t is a verticalseotional view taken on the Tine 44 of Fig. 1. Fig. 5 is an end elevation of the yoke. And Figs. 6, 7, and 8 are detail erspectives of the locking block retainer p ate, and wear plate respectively.

Referring to said drawing, 10 denotes a standard draw-bar having the usual butt 11 provided with upper shoulder 12 and lower shoulder 13. The yoke A, which is preferably a steel casting, is provided with an upper arm 14:, lower arm 15, rear connecting portion 16, and a hollow head 17 at its front end. The hollow head 17 is open at the front and comprises side walls l818,

upper wall 19, and depending bottom portions 20-20 having a recess or space-21 therebetween. On its inner face, the upper wall 19 is rovided with-a depending integral should zar 22, the latter being curved on its rear face as indicated at 23 to engage and gooperate with the shoulder 12 of the drawar. a

To look the draw-bar in the yoke, the following means are provided. A locking block B is employed having a transversely extending shoulder 24: curved on its rear face as indicated at 25, said shoulder 24 cooperating with the shoulder 13 of the drawbar. At its rear end, the block B is provided with oppositely and laterally extending gradually tapering rearwardly from said "portion 29 as indicated at 30. A. Wedgeshaped block or wear plate C is employed having a horizontal top portion 31 and beveled face 32 which cooperates with the corresponding bevel face of the block B. The wear plate 0 is assembled as clearly shown in Fig. 1, and is prevented from rearward movement by an integral shoulder 33 formed in the yoke. The members B and C are inserted from the under side of the yoke through said recess 21 and to roperly hold the same in position, I provi e a retainin plate D. The retaining plate D is rovide with inwardly extending ribsBd w ich operate within corresponding grooves 35 formed on the sides of the yoke head. At its front end, the block D is provided with a hollow extension 36 whiclr is adapted to fitover a depending rib 37 on the block B when the latter is in position. The rib 37 and the walls of said extension 36 are perforated to receive a cotter 38.

To disconnect the yoke and draW-bar,'the cotter 38 is first withdrawn after which the an wear late C are removed from below and the downwardly a suficient distance to clear thev shoulder 22. The draw-bar may then be withdrawn forwardly, as will be understood.

ll claim: a

l. A yoke having a hooded forward end within which is adapted to be received a draw-bar butt, means for engaging the upper shoulder 'of a draw-bar butt, and devices for cooperating with the lower shoulder of a *draw-bar butt, said devices including a block shouldered at its forward end to engage said lower shoulder, said block being also shouldered at its rear end to engage co operating shoulders on the yoke and pre vent forward movement of said block, and a raw-bar may then be dropped lllld detachable member for supporting said block in operative position.

2. A yoke provided with a hooded forward end having an opening through the bottom thereof, means on said yoke arranged to engage the upper shoulder of a draw-bar, a shouldered block engageable with the lower shoulder of a draw-bar, said block having a T shaped rear end fitting between a pair of depending lugs provided on the yoke, and means for supporting said block in position.

3. A yoke having a hooded forward end and provided with means for engaging the upper shoulder of a draw-bar, a shouldered block located within the hood and arranged to engage the lower shoulder of a draw-bar, and a retaining plate on the underside of the hood for said block, said plate and hood having cooperable tongues and grooves whereby said plate is slidably engaged with hood.

4. A yoke for railway draft riggings having an integral hood at its forward end, said hood having an upper shoulder curved on its rear face'to engage the shoulder of a drawbar, said hood having a recess in the bottom wall thereof and open to the underside, a shouldered block fitting within said recess, the shoulder thereof being curved on its rear face to cooperate with the shoulder of a draw-bar, said curved shoulders permitting a radial movement of the draw-bar, and a plate detaehably and slidably interlocked with the hood for retaining said block in position.

5. A yoke having a hooded forward end, and means for detachably connecting said yoke with a draw-bar, said means including a block having an upwardly extending shoulder at'its front end and a T shaped read end, a wear plate interposed between said block and a draw-bar, and a detachable member for supporting said block in operative position.

6. A yoke having a hooded forward end within which is adapted to be received a draw bar butt, means for engaging the upper shoulder of a draw bar butt, and devices for cooperating with the lower shoulder of a draw bar butt, said devices including a block shouldered at its forward end to engage said lower shoulder, said block being also slmuldered at its rear end to engage a cooperating shoulder on the yoke and prevent forward movement of said block, and a detachable member for supporting said block in operative position.

7. A yoke for draft gears, comprising a U-shaped member forming the top and bottom of the yoke, said top being provided with an integral lug to receive the draw bar stresses, a downwardly displaceable member having a corresponding lug, means on said displaceable and bottom members adapted for interlocking engagement to transfer the draw bar stresses to said bottom member, and means for retaining said displaceable member in operative position.

8. A yoke for draft gears, comprising a U-shaped member forming the top and bottom of the yoke, and a hood adapted to surround the butt of the draw bar, a downwardly displaceable member within said hood beneath the draw bar butt and having interlocking engagement with the bottom of said yoke, said top and displaceable member being provided with means to receive pulling stresses from the draw bar, and

means for retaining said displaceable memher in operative position.

9. A yoke for draft gears, comprising a U-shaped member forming the top and bottom of the yoke. and a hood integral therewith adapted to surround the butt of the draw bar, said top being provided with a lug to receive pulling stresses from the draw bar. a downwardly displaceable member within said hood beneath the draw bar butt and provided with a corresponding lug, lugs on said displaceable member and the bottom of said yoke to provide for interlocking engagement therebetween, and a key to retain said displaceable member in operative position.

In witness that I claim the foregoing I have hereunto subscribed my name this 15th day of March, 1916.

STACY B. HASELTINE. 

